Planoconcave lens
[医] 平凹镜片, 平凹透镜
🏥 医学释义
平凹透镜，平凹镜片
🧩 词语组成解析
[医] 平凹的
lens
[lɛnz]
n. 透镜，镜头;眼睛中的水晶体;隐形眼镜;汽车的灯玻璃;
🗣️ 情景例句
The signs of the city never fail to impress the foreign tourists.
外国游客无一不对该城市留有深刻的印象。
You're not wearing enough. It's cold out there.
你穿这样不够保暖。
I can't afford to go to a restaurant every day.
每天都去餐馆吃饭，我真是支付不起。